[ViewVC] Diff of: cvs/gvpe/src/conf.C

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

…		…
1	/*	1	/*
2	conf.c -- configuration code	2	conf.C -- configuration code
3	Copyright (C) 1998 Robert van der Meulen	3	Copyright (C) 2003-2008,2011 Marc Lehmann <gvpe@schmorp.de>
4	1998-2002 Ivo Timmermans <ivo@o2w.nl>
5	2000-2002 Guus Sliepen <guus@sliepen.eu.org>
6	2000 Cris van Pelt <tribbel@arise.dhs.org>
7	2003 Marc Lehmann <pcg@goof.com>
8		4
		5	This file is part of GVPE.
		6
9	This program is free software; you can redistribute it and/or modify	7	GVPE is free software; you can redistribute it and/or modify it
10	it under the terms of the GNU General Public License as published by	8	under the terms of the GNU General Public License as published by the
11	the Free Software Foundation; either version 2 of the License, or	9	Free Software Foundation; either version 3 of the License, or (at your
12	(at your option) any later version.	10	option) any later version.
13		11
14	This program is distributed in the hope that it will be useful,	12	This program is distributed in the hope that it will be useful, but
15	but WITHOUT ANY WARRANTY; without even the implied warranty of	13	WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
17	GNU General Public License for more details.	15	Public License for more details.
18		16
19	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License along
20	along with this program; if not, write to the Free Software	18	with this program; if not, see <http://www.gnu.org/licenses/>.
21	Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA	19
		20	Additional permission under GNU GPL version 3 section 7
		21
		22	If you modify this Program, or any covered work, by linking or
		23	combining it with the OpenSSL project's OpenSSL library (or a modified
		24	version of that library), containing parts covered by the terms of the
		25	OpenSSL or SSLeay licenses, the licensors of this Program grant you
		26	additional permission to convey the resulting work. Corresponding
		27	Source for a non-source form of such a combination shall include the
		28	source code for the parts of OpenSSL used as well as that of the
		29	covered work.
22	*/	30	*/
23		31
24	#include "config.h"	32	#include "config.h"
25		33
26	#include <cstdio>	34	#include <cstdio>
30	#include <errno.h>	38	#include <errno.h>
31	#include <netdb.h>	39	#include <netdb.h>
32	#include <sys/stat.h>	40	#include <sys/stat.h>
33	#include <sys/types.h>	41	#include <sys/types.h>
34	#include <unistd.h>	42	#include <unistd.h>
		43	#include <pwd.h>
35		44
36	#include <netinet/in.h>	45	#include "netcompat.h"
37	#include <arpa/inet.h>
38	#ifdef ENABLE_ICMP
39	# ifdef HAVE_NETINET_IN_SYSTM_H
40	# include <netinet/in_systm.h>
41	# endif
42	# ifdef HAVE_NETINET_IP_H
43	# include <netinet/ip.h>
44	# endif
45	# include <netinet/ip_icmp.h>
46	#endif
47		46
48	#include <openssl/err.h>	47	#include <openssl/err.h>
49	#include <openssl/pem.h>	48	#include <openssl/pem.h>
50	#include <openssl/rsa.h>	49	#include <openssl/rsa.h>
51	#include <openssl/rand.h>	50	#include <openssl/rand.h>
52		51	#include <openssl/bn.h>
53	#include "gettext.h"
54		52
55	#include "conf.h"	53	#include "conf.h"
56	#include "slog.h"	54	#include "slog.h"
57	#include "util.h"	55	#include "util.h"
58		56
59	char *confbase;	57	char *confbase;
60	char *thisnode;	58	char *thisnode;
61	char *identname;	59	char *identname;
62	char *pidfilename;
63		60
64	struct configuration conf;	61	struct configuration conf;
65		62
		63	u8
66	u8 best_protocol (u8 protset)	64	best_protocol (u8 protset)
67	{	65	{
68	if (protset & PROT_IPv4 ) return PROT_IPv4;	66	if (protset & PROT_IPv4 ) return PROT_IPv4;
69	if (protset & PROT_ICMPv4) return PROT_ICMPv4;	67	if (protset & PROT_ICMPv4) return PROT_ICMPv4;
70	if (protset & PROT_UDPv4 ) return PROT_UDPv4;	68	if (protset & PROT_UDPv4 ) return PROT_UDPv4;
71	if (protset & PROT_TCPv4 ) return PROT_TCPv4;	69	if (protset & PROT_TCPv4 ) return PROT_TCPv4;
		70	if (protset & PROT_DNSv4 ) return PROT_DNSv4;
72		71
73	return 0;	72	return 0;
74	}	73	}
75		74
		75	const char *
76	const char *strprotocol (u8 protocol)	76	strprotocol (u8 protocol)
77	{	77	{
78	if (protocol & PROT_IPv4 ) return "rawip";	78	if (protocol & PROT_IPv4 ) return "rawip";
79	if (protocol & PROT_ICMPv4) return "icmp";	79	if (protocol & PROT_ICMPv4) return "icmp";
80	if (protocol & PROT_UDPv4 ) return "udp";	80	if (protocol & PROT_UDPv4 ) return "udp";
81	if (protocol & PROT_TCPv4 ) return "tcp";	81	if (protocol & PROT_TCPv4 ) return "tcp";
		82	if (protocol & PROT_DNSv4 ) return "dns";
82		83
83	return "<unknown>";	84	return "<unknown>";
84	}	85	}
85		86
86	void	87	static bool
87	conf_node::print ()	88	match_list (const vector<const char > &list, const char str)
88	{	89	{
89	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %s%s%d\n",	90	for (vector<const char *>::const_iterator i = list.end (); i-- > list.begin (); )
90	id,	91	if ((i)[0] == '' && !(*i)[1])
91	id >> 8, id & 0xff,	92	return true;
92	compress ? 'Y' : 'N',	93	else if (!strcmp (*i, str))
93	connectmode == C_ONDEMAND ? "ondemand" :	94	return true;
94	connectmode == C_NEVER ? "never" :	95
95	connectmode == C_ALWAYS ? "always" : "",	96	return false;
96	nodename,	97	}
97	hostname ? hostname : "",	98
98	hostname ? ":" : "",	99	bool
99	hostname ? udp_port : 0	100	conf_node::may_direct (struct conf_node *other)
100	);	101	{
		102	if (match_list (allow_direct, other->nodename))
		103	return true;
		104
		105	if (match_list (deny_direct, other->nodename))
		106	return false;
		107
		108	return true;
101	}	109	}
102		110
103	conf_node::~conf_node ()	111	conf_node::~conf_node ()
104	{	112	{
		113	#if 0
		114	// does not work, because string pointers etc. are shared
		115	// is not called, however
105	if (rsa_key)	116	if (rsa_key)
106	RSA_free (rsa_key);	117	RSA_free (rsa_key);
107		118
108	free (nodename);	119	free (nodename);
109	free (hostname);	120	free (hostname);
		121	free (if_up_data);
		122	#if ENABLE_DNS
		123	free (domain);
		124	free (dns_hostname);
		125	#endif
		126	#endif
110	}	127	}
111		128
		129	void
112	void configuration::init ()	130	configuration::init ()
113	{	131	{
114	memset (this, 0, sizeof (*this));	132	memset (this, 0, sizeof (*this));
115		133
		134	mtu = DEFAULT_MTU;
		135	nfmark = 0;
116	rekey = DEFAULT_REKEY;	136	rekey = DEFAULT_REKEY;
117	keepalive = DEFAULT_KEEPALIVE;	137	keepalive = DEFAULT_KEEPALIVE;
118	llevel = L_INFO;	138	llevel = L_INFO;
119	ip_proto = IPPROTO_GRE;	139	ip_proto = IPPROTO_GRE;
120	#if ENABLE_ICMP	140	#if ENABLE_ICMP
121	icmp_type = ICMP_ECHOREPLY;	141	icmp_type = ICMP_ECHOREPLY;
122	#endif	142	#endif
123		143
124	default_node.udp_port = DEFAULT_UDPPORT;	144	default_node.udp_port = DEFAULT_UDPPORT;
125	default_node.tcp_port = DEFAULT_UDPPORT;	145	default_node.tcp_port = DEFAULT_UDPPORT; // ehrm
126	default_node.connectmode = conf_node::C_ALWAYS;	146	default_node.connectmode = conf_node::C_ALWAYS;
127	default_node.compress = true;	147	default_node.compress = true;
128	default_node.protocols = PROT_UDPv4;	148	default_node.protocols = 0;
129	}	149	default_node.max_retry = DEFAULT_MAX_RETRY;
		150	default_node.max_ttl = DEFAULT_MAX_TTL;
		151	default_node.max_queue = DEFAULT_MAX_QUEUE;
		152	default_node.if_up_data = strdup ("");
130		153
		154	#if ENABLE_DNS
		155	default_node.dns_port = 0; // default is 0 == client
		156
		157	dns_case_preserving = true;
		158	dns_forw_host = strdup ("127.0.0.1");
		159	dns_forw_port = 53;
		160	dns_timeout_factor = DEFAULT_DNS_TIMEOUT_FACTOR;
		161	dns_send_interval = DEFAULT_DNS_SEND_INTERVAL;
		162	dns_overlap_factor = DEFAULT_DNS_OVERLAP_FACTOR;
		163	dns_max_outstanding = DEFAULT_DNS_MAX_OUTSTANDING;
		164	#endif
		165
		166	pidfilename = strdup (LOCALSTATEDIR "/run/gvpe.pid");
		167	seed_dev = strdup ("/dev/urandom");
		168	reseed = DEFAULT_RESEED;
		169	}
		170
		171	void
131	void configuration::cleanup()	172	configuration::cleanup ()
132	{	173	{
133	if (rsa_key)	174	if (rsa_key)
134	RSA_free (rsa_key);	175	RSA_free (rsa_key);
135		176
136	rsa_key = 0;	177	rsa_key = 0;
137		178
		179	free (seed_dev); seed_dev = 0;
138	free (ifname); ifname = 0;	180	free (pidfilename); pidfilename = 0;
		181	free (ifname); ifname = 0;
139	#if ENABLE_HTTP_PROXY	182	#if ENABLE_HTTP_PROXY
140	free (proxy_host); proxy_host = 0;	183	free (proxy_host); proxy_host = 0;
141	free (proxy_auth); proxy_auth = 0;	184	free (proxy_auth); proxy_auth = 0;
142	#endif	185	#endif
		186	#if ENABLE_DNS
		187	free (dns_forw_host); dns_forw_host = 0;
		188	#endif
		189	free (change_root); change_root = 0;
		190	free (script_if_up); script_if_up = 0;
		191	free (script_node_up); script_node_up = 0;
		192	free (script_node_change); script_node_change = 0;
		193	free (script_node_down); script_node_down = 0;
143	}	194	}
144		195
145	void	196	void
146	configuration::clear_config ()	197	configuration::clear ()
147	{	198	{
148	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)	199	for (configuration::node_vector::iterator i = nodes.begin(); i != nodes.end(); ++i)
149	delete *i;	200	delete *i;
150		201
151	nodes.clear ();	202	nodes.clear ();
152		203
153	cleanup ();	204	cleanup ();
154	init ();	205	init ();
155	}	206	}
156		207
		208	conf_node *
		209	configuration::find_node (const char *name)
		210	{
		211	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		212	if (!strcmp ((*i)->nodename, name))
		213	return *i;
		214
		215	return 0;
		216	}
		217
		218	//static bool
		219	//is_true (const char *name)
		220	//{
		221	//re
		222	//}
		223
157	#define parse_bool(target,name,trueval,falseval) \	224	#define parse_bool(target,name,trueval,falseval) do { \
158	if (!strcmp (val, "yes")) target = trueval; \	225	if (!strcmp (val, "yes")) target = trueval; \
159	else if (!strcmp (val, "no")) target = falseval; \	226	else if (!strcmp (val, "no")) target = falseval; \
160	else if (!strcmp (val, "true")) target = trueval; \	227	else if (!strcmp (val, "true")) target = trueval; \
161	else if (!strcmp (val, "false")) target = falseval; \	228	else if (!strcmp (val, "false")) target = falseval; \
162	else if (!strcmp (val, "on")) target = trueval; \	229	else if (!strcmp (val, "on")) target = trueval; \
163	else if (!strcmp (val, "off")) target = falseval; \	230	else if (!strcmp (val, "off")) target = falseval; \
164	else \	231	else \
165	slog (L_WARN, \
166	_("illegal value for '%s', only 'yes\|true\|on' or 'no\|false\|off' allowed, at '%s' line %d"), \	232	return _("illegal boolean value, only 'yes\|true\|on' or 'no\|false\|off' allowed, ignored"); \
167	name, var, fname, lineno);	233	} while (0)
168		234
169	void configuration::read_config (bool need_keys)	235	const char *
		236	configuration_parser::parse_line (char *line)
170	{	237	{
171	char *fname;	238	{
172	FILE *f;	239	char *end = line + strlen (line);
173		240
174	clear_config ();	241	while (*end < ' ' && end >= line)
		242	end--;
175		243
176	asprintf (&fname, "%s/vped.conf", confbase);	244	*++end = 0;
177	f = fopen (fname, "r");	245	}
178		246
179	if (f)	247	char *tok = line;
		248	const char *var = strtok (tok, "\t =");
		249	tok = 0;
		250
		251	if (!var \|\| !var[0])
		252	return 0; /* no tokens on this line */
		253
		254	if (var[0] == '#')
		255	return 0; /* comment: ignore */
		256
		257	if (!strcmp (var, "global"))
		258	{
		259	node = &conf.default_node;
		260	return 0;
180	{	261	}
		262
		263	char *val = strtok (NULL, "\t\n\r =");
		264
		265	if (!val \|\| val[0] == '#')
		266	return _("no value given for variable, ignored");
		267
		268	else if (!strcmp (var, "on"))
		269	{
		270	if (::thisnode
		271	&& ((val[0] == '!' && strcmp (val + 1, ::thisnode))
		272	\|\| !strcmp (val, ::thisnode)))
		273	return parse_line (strtok (NULL, "\n\r"));
		274	}
		275
		276	else if (!strcmp (var, "include"))
		277	{
		278	char *fname = conf.config_filename (val);
		279	parse_file (fname);
		280	free (fname);
		281	}
		282
		283	// truly global
		284	else if (!strcmp (var, "loglevel"))
		285	{
		286	loglevel l = string_to_loglevel (val);
		287
		288	if (l == L_NONE)
		289	return _("unknown loglevel, ignored");
		290	}
		291	else if (!strcmp (var, "ip-proto"))
		292	conf.ip_proto = atoi (val);
		293	else if (!strcmp (var, "icmp-type"))
		294	{
		295	#if ENABLE_ICMP
		296	conf.icmp_type = atoi (val);
		297	#endif
		298	}
		299	else if (!strcmp (var, "chuser"))
		300	{
		301	struct passwd *pw = getpwnam (val);
		302	if (!pw)
		303	return _("user specified for chuser not found");
		304
		305	conf.change_uid = pw->pw_uid;
		306	conf.change_gid = pw->pw_gid;
		307	}
		308	else if (!strcmp (var, "chuid"))
		309	conf.change_uid = atoi (val);
		310	else if (!strcmp (var, "chgid"))
		311	conf.change_gid = atoi (val);
		312	else if (!strcmp (var, "chroot"))
		313	free (conf.change_root), conf.change_root = strdup (val);
		314
		315	// per node
		316	else if (!strcmp (var, "node"))
		317	{
		318	node = conf.find_node (val);
		319
		320	if (!node)
		321	{
		322	conf.default_node.id++;
		323	node = new conf_node (conf.default_node);
		324	conf.nodes.push_back (node);
		325	node->nodename = strdup (val);
		326	}
		327	}
		328	else if (!strcmp (var, "private-key"))
		329	free (conf.prikeyfile), conf.prikeyfile = strdup (val);
		330	else if (!strcmp (var, "ifpersist"))
		331	parse_bool (conf.ifpersist, "ifpersist", true, false);
		332	else if (!strcmp (var, "ifname"))
		333	free (conf.ifname), conf.ifname = strdup (val);
		334	else if (!strcmp (var, "rekey"))
		335	conf.rekey = atoi (val);
		336	else if (!strcmp (var, "keepalive"))
		337	conf.keepalive = atoi (val);
		338	else if (!strcmp (var, "mtu"))
		339	conf.mtu = atoi (val);
		340	else if (!strcmp (var, "nfmark"))
		341	conf.nfmark = atoi (val);
		342	else if (!strcmp (var, "seed-device"))
		343	free (conf.seed_dev), conf.seed_dev = strdup (val);
		344	else if (!strcmp (var, "seed-interval"))
		345	conf.reseed = atoi (val);
		346	else if (!strcmp (var, "if-up"))
		347	free (conf.script_if_up), conf.script_if_up = strdup (val);
		348	else if (!strcmp (var, "node-up"))
		349	free (conf.script_node_up), conf.script_node_up = strdup (val);
		350	else if (!strcmp (var, "node-change"))
		351	free (conf.script_node_change), conf.script_node_change = strdup (val);
		352	else if (!strcmp (var, "node-down"))
		353	free (conf.script_node_down), conf.script_node_down = strdup (val);
		354	else if (!strcmp (var, "pid-file"))
		355	free (conf.pidfilename), conf.pidfilename = strdup (val);
		356	else if (!strcmp (var, "dns-forw-host"))
		357	{
		358	#if ENABLE_DNS
		359	free (conf.dns_forw_host), conf.dns_forw_host = strdup (val);
		360	#endif
		361	}
		362	else if (!strcmp (var, "dns-forw-port"))
		363	{
		364	#if ENABLE_DNS
		365	conf.dns_forw_port = atoi (val);
		366	#endif
		367	}
		368	else if (!strcmp (var, "dns-timeout-factor"))
		369	{
		370	#if ENABLE_DNS
		371	conf.dns_timeout_factor = atof (val);
		372	#endif
		373	}
		374	else if (!strcmp (var, "dns-send-interval"))
		375	{
		376	#if ENABLE_DNS
		377	conf.dns_send_interval = atoi (val);
		378	#endif
		379	}
		380	else if (!strcmp (var, "dns-overlap-factor"))
		381	{
		382	#if ENABLE_DNS
		383	conf.dns_overlap_factor = atof (val);
		384	#endif
		385	}
		386	else if (!strcmp (var, "dns-max-outstanding"))
		387	{
		388	#if ENABLE_DNS
		389	conf.dns_max_outstanding = atoi (val);
		390	#endif
		391	}
		392	else if (!strcmp (var, "dns-case-preserving"))
		393	{
		394	#if ENABLE_DNS
		395	parse_bool (conf.dns_case_preserving, "dns-case-preserving", true, false);
		396	#endif
		397	}
		398	else if (!strcmp (var, "http-proxy-host"))
		399	{
		400	#if ENABLE_HTTP_PROXY
		401	free (conf.proxy_host), conf.proxy_host = strdup (val);
		402	#endif
		403	}
		404	else if (!strcmp (var, "http-proxy-port"))
		405	{
		406	#if ENABLE_HTTP_PROXY
		407	conf.proxy_port = atoi (val);
		408	#endif
		409	}
		410	else if (!strcmp (var, "http-proxy-auth"))
		411	{
		412	#if ENABLE_HTTP_PROXY
		413	conf.proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
		414	#endif
		415	}
		416
		417	/* node-specific, non-defaultable */
		418	else if (node != &conf.default_node && !strcmp (var, "hostname"))
		419	free (node->hostname), node->hostname = strdup (val);
		420
		421	/* node-specific, defaultable */
		422	else if (!strcmp (var, "udp-port"))
		423	node->udp_port = atoi (val);
		424	else if (!strcmp (var, "tcp-port"))
		425	node->tcp_port = atoi (val);
		426	else if (!strcmp (var, "dns-hostname"))
		427	{
		428	#if ENABLE_DNS
		429	free (node->dns_hostname), node->dns_hostname = strdup (val);
		430	#endif
		431	}
		432	else if (!strcmp (var, "dns-port"))
		433	{
		434	#if ENABLE_DNS
		435	node->dns_port = atoi (val);
		436	#endif
		437	}
		438	else if (!strcmp (var, "dns-domain"))
		439	{
		440	#if ENABLE_DNS
		441	free (node->domain), node->domain = strdup (val);
		442	#endif
		443	}
		444	else if (!strcmp (var, "if-up-data"))
		445	free (node->if_up_data), node->if_up_data = strdup (val);
		446	else if (!strcmp (var, "router-priority"))
		447	node->routerprio = atoi (val);
		448	else if (!strcmp (var, "max-retry"))
		449	node->max_retry = atoi (val);
		450	else if (!strcmp (var, "connect"))
		451	{
		452	if (!strcmp (val, "ondemand"))
		453	node->connectmode = conf_node::C_ONDEMAND;
		454	else if (!strcmp (val, "never"))
		455	node->connectmode = conf_node::C_NEVER;
		456	else if (!strcmp (val, "always"))
		457	node->connectmode = conf_node::C_ALWAYS;
		458	else if (!strcmp (val, "disabled"))
		459	node->connectmode = conf_node::C_DISABLED;
		460	else
		461	return _("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', ignored");
		462	}
		463	else if (!strcmp (var, "inherit-tos"))
		464	parse_bool (node->inherit_tos, "inherit-tos", true, false);
		465	else if (!strcmp (var, "compress"))
		466	parse_bool (node->compress, "compress", true, false);
		467	// all these bool options really really cost a lot of executable size!
		468	else if (!strcmp (var, "enable-tcp"))
		469	{
		470	#if ENABLE_TCP
		471	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
		472	#endif
		473	}
		474	else if (!strcmp (var, "enable-icmp"))
		475	{
		476	#if ENABLE_ICMP
		477	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
		478	#endif
		479	}
		480	else if (!strcmp (var, "enable-dns"))
		481	{
		482	#if ENABLE_DNS
		483	u8 v; parse_bool (v, "enable-dns" , PROT_DNSv4, 0); node->protocols = (node->protocols & ~PROT_DNSv4) \| v;
		484	#endif
		485	}
		486	else if (!strcmp (var, "enable-udp"))
		487	{
		488	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
		489	}
		490	else if (!strcmp (var, "enable-rawip"))
		491	{
		492	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
		493	}
		494	else if (!strcmp (var, "allow-direct"))
		495	node->allow_direct.push_back (strdup (val));
		496	else if (!strcmp (var, "deny-direct"))
		497	node->deny_direct.push_back (strdup (val));
		498	else if (!strcmp (var, "max-ttl"))
		499	node->max_ttl = atof (val);
		500	else if (!strcmp (var, "max-queue"))
		501	node->max_queue = atoi (val);
		502
		503	// unknown or misplaced
		504	else
		505	return _("unknown configuration directive - ignored");
		506
		507	return 0;
		508	}
		509
		510	void
		511	conf_node::finalise ()
		512	{
		513	if (max_queue < 1)
		514	{
		515	slog (L_WARN, _("%s: max-queue value invalid, setting it to 1."), nodename);
		516	max_queue = 1;
		517	}
		518
		519	if (routerprio > 1 && (connectmode != C_ALWAYS && connectmode != C_DISABLED))
		520	{
		521	//slog (L_WARN, _("%s: has non-zero router-priority but either 'never' or 'ondemand' as connectmode, setting it to 'always'."), nodename);
		522	connectmode = C_ALWAYS;
		523	}
		524	}
		525
		526	void
		527	configuration_parser::parse_file (const char *fname)
		528	{
		529	if (FILE *f = fopen (fname, "r"))
		530	{
181	char line[16384];	531	char line [2048];
182	int lineno = 0;	532	int lineno = 0;
183	char var, val;
184	conf_node *node = &default_node;
185		533
186	while (fgets (line, sizeof (line), f))	534	while (fgets (line, sizeof (line), f))
187	{	535	{
188	lineno++;	536	lineno++;
189		537
190	{	538	const char *warn = parse_line (line);
191	char *end = line + strlen (line);
192		539
193	while (*end < ' ' && end >= line)	540	if (warn)
194	end--;	541	slog (L_WARN, _("%s, at '%s', line %d."), warn, fname, lineno);
195
196	*++end = 0;
197	}
198
199	char *tok = line;
200
201	retry:
202	var = strtok (tok, "\t =");
203	tok = 0;
204
205	if (!var \|\| !var[0])
206	continue; /* no tokens on this line */
207
208	if (var[0] == '#')
209	continue; /* comment: ignore */
210
211	val = strtok (NULL, "\t\n\r =");
212
213	if (!val \|\| val[0] == '#')
214	{
215	slog (L_WARN,
216	_("no value for variable `%s', at '%s' line %d"),
217	var, fname, lineno);
218	break;
219	}
220
221	if (!strcmp (var, "on"))
222	{
223	if (!::thisnode
224	\|\| (val[0] == '!' && strcmp (val + 1, ::thisnode))
225	\|\| !strcmp (val, ::thisnode))
226	goto retry;
227
228	continue;
229	}
230
231	// truly global
232	if (!strcmp (var, "loglevel"))
233	{
234	loglevel l = string_to_loglevel (val);
235
236	if (l != L_NONE)
237	llevel = l;
238	else
239	slog (L_WARN, "'%s': %s, at '%s' line %d", val, UNKNOWN_LOGLEVEL, fname, line);
240	}
241	else if (!strcmp (var, "ip-proto"))
242	ip_proto = atoi (val);
243	#if ENABLE_ICMP
244	//TODO: error message
245	else if (!strcmp (var, "icmp-type"))
246	icmp_type = atoi (val);
247	#endif
248
249	// per config
250	else if (!strcmp (var, "node"))
251	{
252	default_node.id++;
253
254	node = new conf_node (default_node);
255
256	nodes.push_back (node);
257
258	node->nodename = strdup (val);
259
260	{
261	char *fname;
262	FILE *f;
263
264	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
265
266	f = fopen (fname, "r");
267	if (f)
268	{
269	node->rsa_key = RSA_new ();
270
271	if (!PEM_read_RSAPublicKey(f, &node->rsa_key, NULL, NULL))
272	{
273	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
274	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
275	exit (1);
276	}
277
278	RSA_blinding_on (node->rsa_key, 0);
279
280	fclose (f);
281	}
282	else
283	{
284	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
285
286	if (need_keys)
287	exit (1);
288	}
289
290	free (fname);
291	}
292
293	if (!::thisnode \|\| !strcmp (node->nodename, ::thisnode))
294	thisnode = node;
295	}
296	else if (!strcmp (var, "private-key"))
297	prikeyfile = strdup (val);
298	else if (!strcmp (var, "ifpersist"))
299	{
300	parse_bool (ifpersist, "ifpersist", true, false);
301	}
302	else if (!strcmp (var, "ifname"))
303	ifname = strdup (val);
304	else if (!strcmp (var, "rekey"))
305	rekey = atoi (val);
306	else if (!strcmp (var, "keepalive"))
307	keepalive = atoi (val);
308	else if (!strcmp (var, "mtu"))
309	mtu = atoi (val);
310	else if (!strcmp (var, "if-up"))
311	script_if_up = strdup (val);
312	else if (!strcmp (var, "node-up"))
313	script_node_up = strdup (val);
314	else if (!strcmp (var, "node-down"))
315	script_node_down = strdup (val);
316	#if ENABLE_HTTP_PROXY
317	else if (!strcmp (var, "http-proxy-host"))
318	proxy_host = strdup (val);
319	else if (!strcmp (var, "http-proxy-port"))
320	proxy_port = atoi (val);
321	else if (!strcmp (var, "http-proxy-auth"))
322	proxy_auth = (char )base64_encode ((const u8 )val, strlen (val));
323	#endif
324
325	/* node-specific, non-defaultable */
326	else if (node != &default_node && !strcmp (var, "hostname"))
327	{
328	free (node->hostname);
329	node->hostname = strdup (val);
330	}
331
332	/* node-specific, defaultable */
333	else if (!strcmp (var, "udp-port"))
334	node->udp_port = atoi (val);
335	else if (!strcmp (var, "tcp-port"))
336	node->tcp_port = atoi (val);
337	else if (!strcmp (var, "router-priority"))
338	node->routerprio = atoi (val);
339	else if (!strcmp (var, "connect"))
340	{
341	if (!strcmp (val, "ondemand"))
342	node->connectmode = conf_node::C_ONDEMAND;
343	else if (!strcmp (val, "never"))
344	node->connectmode = conf_node::C_NEVER;
345	else if (!strcmp (val, "always"))
346	node->connectmode = conf_node::C_ALWAYS;
347	else if (!strcmp (val, "disabled"))
348	node->connectmode = conf_node::C_DISABLED;
349	else
350	slog (L_WARN,
351	_("illegal value for 'connectmode', use one of 'ondemand', 'never', 'always' or 'disabled', at '%s' line %d"),
352	var, fname, lineno);
353	}
354	else if (!strcmp (var, "inherit-tos"))
355	{
356	parse_bool (node->inherit_tos, "inherit-tos", true, false);
357	}
358	else if (!strcmp (var, "compress"))
359	{
360	parse_bool (node->compress, "compress", true, false);
361	}
362	// all these bool options really really cost a lot of executable size!
363	else if (!strcmp (var, "enable-tcp"))
364	{
365	#if ENABLE_TCP
366	u8 v; parse_bool (v, "enable-tcp" , PROT_TCPv4, 0); node->protocols = (node->protocols & ~PROT_TCPv4) \| v;
367	#endif
368	}
369	else if (!strcmp (var, "enable-icmp"))
370	{
371	#if ENABLE_ICMP
372	u8 v; parse_bool (v, "enable-icmp" , PROT_ICMPv4, 0); node->protocols = (node->protocols & ~PROT_ICMPv4) \| v;
373	#endif
374	}
375	else if (!strcmp (var, "enable-udp"))
376	{
377	u8 v; parse_bool (v, "enable-udp" , PROT_UDPv4, 0); node->protocols = (node->protocols & ~PROT_UDPv4) \| v;
378	}
379	else if (!strcmp (var, "enable-rawip"))
380	{
381	u8 v; parse_bool (v, "enable-rawip", PROT_IPv4, 0); node->protocols = (node->protocols & ~PROT_IPv4 ) \| v;
382	}
383
384	// unknown or misplaced
385	else
386	slog (L_WARN,
387	_("unknown or misplaced variable `%s', at '%s' line %d"),
388	var, fname, lineno);
389	}	542	}
390		543
391	fclose (f);	544	fclose (f);
392	}	545	}
393	else	546	else
394	{	547	{
395	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));	548	slog (L_ERR, _("unable to read config file '%s': %s"), fname, strerror (errno));
396	exit (1);	549	exit (EXIT_FAILURE);
397	}	550	}
		551	}
398		552
		553	configuration_parser::configuration_parser (configuration &conf,
		554	bool need_keys,
		555	int argc,
		556	char **argv)
		557	: conf (conf), need_keys (need_keys), argc (argc), argv (argv)
		558	{
		559	char *fname;
		560
		561	conf.clear ();
		562	node = &conf.default_node;
		563
		564	asprintf (&fname, "%s/gvpe.conf", confbase);
		565	parse_file (fname);
399	free (fname);	566	free (fname);
400		567
401	fname = config_filename (prikeyfile, "hostkey");	568	fname = conf.config_filename (conf.prikeyfile, "hostkey");
402		569
403	f = fopen (fname, "r");	570	if (FILE *f = fopen (fname, "r"))
404	if (f)
405	{	571	{
406	rsa_key = RSA_new ();	572	conf.rsa_key = RSA_new ();
407		573
408	if (!PEM_read_RSAPrivateKey (f, &rsa_key, NULL, NULL))	574	if (!PEM_read_RSAPrivateKey (f, &conf.rsa_key, NULL, NULL))
409	{	575	{
410	ERR_load_RSA_strings (); ERR_load_PEM_strings ();	576	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
411	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));	577	slog (L_ERR, _("unable to read private rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
412	exit (1);	578	exit (EXIT_FAILURE);
413	}	579	}
414		580
415	RSA_blinding_on (rsa_key, 0);	581	require (RSA_blinding_on (conf.rsa_key, 0));
416		582
417	fclose (f);	583	fclose (f);
418	}	584	}
419	else	585	else
420	{	586	{
421	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
422
423	if (need_keys)	587	if (need_keys)
424	exit (1);	588	{
		589	slog (need_keys ? L_ERR : L_NOTICE, _("unable to open private rsa key file '%s': %s"), fname, strerror (errno));
		590	exit (EXIT_FAILURE);
		591	}
425	}	592	}
426		593
427	free (fname);	594	free (fname);
428	}
429		595
		596	fname = conf.config_filename (conf.pidfilename);
		597	free (conf.pidfilename); conf.pidfilename = fname;
		598
		599	for (configuration::node_vector::iterator i = conf.nodes.begin(); i != conf.nodes.end(); ++i)
		600	{
		601	conf_node node = i;
		602	char *fname;
		603	FILE *f;
		604
		605	asprintf (&fname, "%s/pubkey/%s", confbase, node->nodename);
		606
		607	f = fopen (fname, "r");
		608	if (f)
		609	{
		610	node->rsa_key = RSA_new ();
		611
		612	if (!PEM_read_RSAPublicKey (f, &node->rsa_key, NULL, NULL))
		613	{
		614	ERR_load_RSA_strings (); ERR_load_PEM_strings ();
		615	slog (L_ERR, _("unable to open public rsa key file '%s': %s"), fname, ERR_error_string (ERR_get_error (), 0));
		616	exit (EXIT_FAILURE);
		617	}
		618
		619	require (RSA_blinding_on (node->rsa_key, 0));
		620
		621	fclose (f);
		622	}
		623	else
		624	{
		625	slog (need_keys ? L_ERR : L_NOTICE, _("unable to read public rsa key file '%s': %s"), fname, strerror (errno));
		626
		627	if (need_keys)
		628	exit (EXIT_FAILURE);
		629	}
		630
		631	free (fname);
		632
		633	(*i)->finalise ();
		634	}
		635
		636	if (::thisnode)
		637	{
		638	conf.thisnode = conf.find_node (::thisnode);
		639
		640	if (need_keys)
		641	{
		642	if (!conf.thisnode)
		643	{
		644	slog (L_NOTICE, _("local node ('%s') not found in config file, aborting."), ::thisnode);
		645	exit (EXIT_FAILURE);
		646	}
		647
		648	if (conf.rsa_key && conf.thisnode->rsa_key)
		649	if (BN_cmp (conf.rsa_key->n, conf.thisnode->rsa_key->n) != 0
		650	\|\| BN_cmp (conf.rsa_key->e, conf.thisnode->rsa_key->e) != 0)
		651	{
		652	slog (L_NOTICE, _("private hostkey and public node key mismatch: is '%s' the correct node?"), ::thisnode);
		653	exit (EXIT_FAILURE);
		654	}
		655	}
		656	}
		657
		658	parse_argv ();
		659	}
		660
		661	void
		662	configuration_parser::parse_argv ()
		663	{
		664	for (int i = 0; i < argc; ++i)
		665	{
		666	char *v = argv [i];
		667
		668	if (!*v)
		669	continue;
		670
		671	char *enode = v;
		672
		673	while (enode != '.' && enode > ' ' && enode != '=' && enode)
		674	enode++;
		675
		676	if (*enode != '.')
		677	enode = 0;
		678
		679	if (enode)
		680	{
		681	char *val = strdup (v);
		682	val [enode - v] = 0;
		683	node = conf.find_node (val);
		684	free (val);
		685
		686	if (!node)
		687	{
		688	slog (L_WARN, _("command line option '%s' refers to unknown node, ignoring."), v);
		689	continue;
		690	}
		691	}
		692	else
		693	node = &conf.default_node;
		694
		695	const char *warn = parse_line (enode ? enode + 1 : v);
		696
		697	if (warn)
		698	slog (L_WARN, _("%s, while parsing command line option '%s'."), warn, v);
		699	}
		700	}
		701
		702	char *
430	char configuration::config_filename (const char name, const char *dflt)	703	configuration::config_filename (const char name, const char dflt)
431	{	704	{
432	char *fname;	705	char *fname;
433		706
434	asprintf (&fname, name ? name : dflt, ::thisnode);	707	asprintf (&fname, name ? name : dflt, ::thisnode ? ::thisnode : "<unset>");
435		708
436	if (!ABSOLUTE_PATH (fname))	709	if (!ABSOLUTE_PATH (fname))
437	{	710	{
438	char *rname = fname;	711	char *rname = fname;
439	asprintf (&fname, "%s/%s", confbase, rname);	712	asprintf (&fname, "%s/%s", confbase, rname);
440	free (rname);	713	free (rname);
441	}	714	}
442		715
443	return fname;	716	return fname;
		717	}
		718
		719	void
		720	conf_node::print ()
		721	{
		722	printf ("%4d fe:fd:80:00:0%1x:%02x %c %-8.8s %-10.10s %02x %s%s%d\n",
		723	id,
		724	id >> 8, id & 0xff,
		725	compress ? 'Y' : 'N',
		726	connectmode == C_ONDEMAND ? "ondemand"
		727	: connectmode == C_NEVER ? "never"
		728	: connectmode == C_ALWAYS ? "always"
		729	: connectmode == C_DISABLED ? "disabled"
		730	: "",
		731	nodename,
		732	protocols,
		733	hostname ? hostname : "",
		734	hostname ? ":" : "",
		735	hostname ? udp_port : 0
		736	);
444	}	737	}
445		738
446	void	739	void
447	configuration::print ()	740	configuration::print ()
448	{	741	{
…		…
455	printf (_("interface: %s\n"), ifname);	748	printf (_("interface: %s\n"), ifname);
456	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");	749	printf (_("primary rsa key: %s\n"), prikeyfile ? prikeyfile : "<default>");
457	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);	750	printf (_("rsa key size: %d\n"), rsa_key ? RSA_size (rsa_key) * 8 : -1);
458	printf ("\n");	751	printf ("\n");
459		752
460	printf ("%4s %-17s %s %-8.8s %-10.10s %s\n",	753	printf ("%4s %-17s %s %-8.8s %-10.10s %04s %s\n",
461	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Host:Port"));	754	_("ID#"), _("MAC"), _("Com"), _("Conmode"), _("Node"), _("Prot"), _("Host:Port"));
462		755
463	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)	756	for (node_vector::iterator i = nodes.begin (); i != nodes.end (); ++i)
464	(*i)->print ();	757	(*i)->print ();
465		758
466	printf ("\n");	759	printf ("\n");
467	}	760	}
468		761
469	configuration::configuration ()	762	configuration::configuration ()
470	{	763	{
		764	asprintf (&confbase, "%s/gvpe", CONFDIR);
		765
471	init ();	766	init ();
472	}	767	}
473		768
474	configuration::~configuration ()	769	configuration::~configuration ()
475	{	770	{
476	cleanup ();	771	cleanup ();
477	}	772	}
478		773
479

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Comparing gvpe/src/conf.C (file contents): Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs. Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC

Diff Legend

Comparing gvpe/src/conf.C (file contents):
Revision 1.16 by pcg, Tue Oct 14 03:22:09 2003 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:16 2013 UTC